could last for years. peter brookes is a former cia officer and senior fellow on national security affairs at the heritage foundation. hi, peter. >> reporter: good morning, alisyn. alisyn: what does the al qaeda 2.0 version look like? >> well, i think the admiral in his comments laid it out pretty clearly and talked about, we're not worried about the al qaeda in pakistan because of the death of bin laden though we can't write off ayman al-zawahiri, the new leader of al qaeda in the pakistani tribal areas but he's worried about yemen and al qaeda in the arabian peninsula and also, somalia, across the waterways there where you have al-shabab. so, al qaeda has been morphing for quite some time, since 9/11 and i think he's saying the threats are moving in that direction and that he thinks and the administration believes that al qaeda, the one we think of from 9/11 purposes, usama bin laden and ayman al-zawahiri, may be on its death bed. alisyn: and how, in this new 2.0 version, how much of a threat is anwar al-awlaki. >> he's dangerous, he was here in the u.s. on 9/11 and left the u.s.